package servlets.admin.moduleManagement;

import static org.junit.Assert.fail;

import java.io.IOException;
import java.sql.SQLException;
import javax.servlet.ServletException;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.mock.web.MockServletConfig;
import testUtils.TestProperties;

/**
 * This class just tests the servlet code. The Setter code is better tested in the SetterTest test's
 *
 * @author Mark Denihan
 */
public class CloseAllModulesTestIT {

  private static final Logger log = LogManager.getLogger(CloseAllModulesTestIT.class);
  private static String applicationRoot = new String();
  private static String lang = "en_GB";
  private MockHttpServletRequest request;
  private MockHttpServletResponse response;

  /** Creates DB or Restores DB to Factory Defaults before running tests */
  @BeforeClass
  public static void resetDatabase() throws IOException, SQLException {
    TestProperties.setTestPropertiesFileDirectory(log);

    TestProperties.createMysqlResource();

    TestProperties.executeSql(log);
  }

  @Before
  public void setUp() {
    request = new MockHttpServletRequest();
    response = new MockHttpServletResponse();
  }

  public String doThePost(String csrfToken) throws ServletException, IOException {

    int expectedResponseCode = 302;
    String moduleClassName = "CloseAllModules";
    log.debug("Creating " + moduleClassName + " Servlet Instance");
    CloseAllModules servlet = new CloseAllModules();
    servlet.init(new MockServletConfig(moduleClassName));

    // Adding Correct CSRF Token (Token Submitted)
    request.addParameter("csrfToken", csrfToken);

    log.debug("Running doPost");
    servlet.doPost(request, response);

    if (response.getStatus() != expectedResponseCode) {
      fail(
          moduleClassName
              + " Servlet Returned "
              + response.getStatus()
              + " Code. "
              + expectedResponseCode
              + " Expected");
    } else {
      log.debug(expectedResponseCode + " Detected");
      log.debug(
          "Servlet Successful, returning response retrieved: " + response.getContentAsString());
      return (response.getContentAsString());
    }

    return null;
  }

  /**
   * @throws SQLException
   * @throws IOException
   * @throws ServletException
   */
  @Test
  public void testWithUserAuth() throws SQLException, ServletException, IOException {
    String userName = "configUserTester";
    String password = userName;
    // Verify / Create user in DB
    TestProperties.verifyTestUser(log, applicationRoot, userName, password);
    // Sign in as Normal User
    log.debug("Signing in as Normal User Through LoginServlet");
    TestProperties.loginDoPost(log, request, response, userName, userName, null, lang);
    log.debug("Login Servlet Complete, Getting CSRF Token");
    if (response.getCookie("token") == null) {
      fail("No CSRF Token Was Returned from Login Servlet");
    }
    String csrfToken = response.getCookie("token").getValue();
    if (csrfToken.isEmpty()) {
      String message = new String("No CSRF token returned from Login Servlet");
      log.fatal(message);
      fail(message);
    } else {
      // Add Cookies from Response to outgoing request
      request.setCookies(response.getCookies());
      String responseBody = doThePost(csrfToken);
      if (responseBody.contains("loggedOutSheep")) {
        log.debug("No Admin Access Result Recieved");
      } else {
        String message = "Did not get authoristion error for User accessing Admin Function";
        log.fatal(message);
        fail(message);
      }
    }
  }

  @Test
  public void testWithAdminAuth() throws SQLException, ServletException, IOException {
    String userName = "configAdminTester";
    String password = userName;
    // Verify / Create user in DB

    TestProperties.verifyTestAdmin(log, applicationRoot, userName, password);
    // Sign in as Normal User
    log.debug("Signing in as Admin User Through LoginServlet");
    TestProperties.loginDoPost(log, request, response, userName, userName, null, lang);
    log.debug("Login Servlet Complete, Getting CSRF Token");
    if (response.getCookie("token") == null) {
      fail("No CSRF Token Was Returned from Login Servlet");
    }
    String csrfToken = response.getCookie("token").getValue();
    if (csrfToken.isEmpty()) {
      String message = new String("No CSRF token returned from Login Servlet");
      log.fatal(message);
      fail(message);
    } else {
      // Add Cookies from Response to outgoing request
      request.setCookies(response.getCookies());
      String responseBody = doThePost(csrfToken);
      if (responseBody.contains("All Modules are Now Closed")) {
        log.debug("All Modules are Now Closed Message Recieved");
      } else {
        String message = "Admin unable to use close all modules servlet";
        log.fatal(message);
        fail(message);
      }
    }
  }

  @Test
  public void testCsrf() throws SQLException, ServletException, IOException {
    String userName = "configAdminTester";
    String password = userName;
    // Verify / Create user in DB
    TestProperties.verifyTestAdmin(log, applicationRoot, userName, password);
    // Sign in as Admin User
    log.debug("Signing in as Admin Through LoginServlet");
    TestProperties.loginDoPost(log, request, response, userName, userName, null, lang);
    log.debug("Login Servlet Complete, Getting CSRF Token");
    if (response.getCookie("token") == null) {
      fail("No CSRF Token Was Returned from Login Servlet");
    }
    String csrfToken = response.getCookie("token").getValue();
    if (csrfToken.isEmpty()) {
      String message = new String("No CSRF token returned from Login Servlet");
      log.fatal(message);
      fail(message);
    } else {
      // Add Cookies from Response to outgoing request
      request.setCookies(response.getCookies());
      String responseBody = doThePost("wrongToken");
      if (responseBody.contains("CSRF Tokens Did Not Match")) {
        log.debug("CSRF Error Occurred");
      } else {
        TestProperties.failAndPrint("CSRF Error Not Detected with Bad CSRF Token");
      }
    }
  }
}
